Name: Your Name (What ever you want)
Email: Your username
Password: Your one2free.com account password
Description: mail@one2free.com
Click Next Button
Hostname: imap.one2free.com
Username: Your username
Password: Your one2free.com account password
Hostname: smtp.one2free.com
Username: Your username
Password: Your one2free.com account password
Click Save Button
Use SSL: None
Authentication: Password
Server Port: 143
Use SSL: Yes
Authentication: Password
Server Port: 465
You can login one2free.com and Signup for one2free.com new account on your iPhone from here.